Family RALLIDAE. 



Crex crex (L.) — Corn-Crake. 



(Plates 126-127, fig. a-g). 

 (Snouckaert: Avifauna Nccrlandica, p. 87, No. 203). 



Colour of surface of shell: 

 Colour of spots: 



Average dimensions: 

 Average weight of shell : 

 Texture of shell: 



Shape : 



Nest: 



Site of nest : 



Number of eggs: 

 Breeding season: 

 Duration of incubation: 

 Remark : 



brownish yellow, sometimes tinted greenish. 



red brown; underlying spots show through 



violet grey. 

 The larger spots generally run in a longitudinal 



direction. 



36.5 X 26 millimetres. 



0.92 gram 



slightly less finely granulated than in Rallus 

 aquaticus. 



ovoidal. 



consists of vegetable materials. 



in a little hollow among long grass in grass- 

 land; also sometimes in corn-fields. 



7—9 (sometimes more; after-set: 5—7). 



end of June, July, August. 



about 21 days. 



See, for comparison with the eggs of Rallus 

 aquaticus, the remark respecting that 

 species. 



